249423907 has 2 divisors, whose sum is σ = 249423908. Its totient is φ = 249423906.

The previous prime is 249423901. The next prime is 249423913. The reversal of 249423907 is 709324942.

It is a balanced prime because it is at equal distance from previous prime (249423901) and next prime (249423913).

It is a cyclic number.

It is not a de Polignac number, because 249423907 - 2¹¹ = 249421859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 249423907.

It is not a weakly prime, because it can be changed into another prime (249423901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124711953 + 124711954.

It is an arithmetic number, because the mean of its divisors is an integer number (124711954).

Almost surely, 2^249423907 is an apocalyptic number.

249423907 is a deficient number, since it is larger than the sum of its proper divisors (1).

249423907 is an equidigital number, since it uses as much as digits as its factorization.

249423907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 249423907 is about 15793.1601334248. The cubic root of 249423907 is about 629.4762649868.

The spelling of 249423907 in words is "two hundred forty-nine million, four hundred twenty-three thousand, nine hundred seven".